Add ud1 to x86.

Add ud1 to x86.

gas/testsuite/

2010-08-05  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/i386.exp: Run arch-4.

	* gas/i386/arch-4.d: New.
	* gas/i386/arch-4.s: Likewise.

	* gas/i386/intel.d: Replace ud2a/ud2b with ud2/ud1.
	* gas/i386/opcode-intel.d: Likewise.
	* gas/i386/opcode-suffix.d: Likewise.
	* gas/i386/opcode.d: Likewise.

opcodes/

2010-08-05  H.J. Lu  <hongjiu.lu@intel.com>

	* i386-dis.c (dis386_twobyte): Replace ud2a/ud2b with ud2/ud1.

	* i386-opc.tbl: Add ud1.  Remove Cpu686 from ud2/ud2a/ud2b.
	* i386-tbl.h: Regenerated.